JP5198320B2 - Car interior lighting system - Google Patents

Description

  The present invention relates to an in-vehicle indoor lighting device including a functional unit.

  A conventional in-vehicle interior lighting device will be described with reference to FIGS. FIG. 5 is a configuration explanatory view of a wire harness module including a conventional in-vehicle indoor lighting device, and FIG. 6 is a perspective view of a functional unit constituting the conventional in-vehicle indoor lighting device.

  In FIG. 5, reference numeral 101 denotes a wire harness module. This wire harness module 101 is routed to the ceiling trim 111 of the automobile. The wire harness module 101 includes a first in-vehicle indoor lighting device having a design part and a function part 102 (not shown), a design part and function part 103 (not shown), and a connector 108 of the wire harness 107 on the vehicle body side. A second in-vehicle interior lighting device, a change-over switch 104 having a design portion (not shown), a plurality of electric wires 105 that electrically connect the first in-vehicle indoor lighting device and the change-over switch 104, and a second in-vehicle use. A plurality of electric wires 106 that electrically connect the indoor lighting device and the changeover switch 104 are provided (see, for example, Patent Document 1 below). An LED illumination lamp 109 is connected to the second in-vehicle indoor lighting device via a plurality of electric wires 110.

  In FIG. 6, the functional unit 102 of the first on-vehicle indoor lighting device includes a valve 112, a switch 113 for turning on and off the valve 112, a synthetic resin housing 114, and a housing 114. And a protective cover 115 that protects the connecting portion of the electric wire 105 and the power supply member (not shown). In the housing 114, a valve mounting portion 116, an electric wire mounting portion 117, and a switch mounting portion 118 are formed.

  A valve 112 is mounted on the valve mounting portion 116. The valve 112 is mounted in an oblique posture. The valve mounting part 116 is formed in a substantially hole shape. The front opening of the valve mounting portion 116 is widely formed for mounting a power supply member (not shown). An electric wire 105 is attached to the electric wire attachment portion 117. A switch 113 is mounted on the switch mounting portion 118. A power supply member (not shown) uses a bus bar to supply power to the valve 112 from the electric wire 105 attached to the electric wire attachment portion 117. A power supply member (not shown) has a wire pressure contact portion. The protective cover 115 is configured such that the lock portion engages with the lock portion of the electric wire attachment portion 117 after the electric wire 105 is attached and pressed. The protective cover 115 is fixed to the housing 114 as shown.

  The functional unit 102 pushes the switch 113 and operates it to turn on / off the bulb 112.

JP 2007-245795 A

  The valve mounting portion 116 can hold the side portion of the valve 112 by an arcuate hole wall 119 formed at a position away from a power supply member (not shown). The hole wall 119 has a small holding range with respect to the valve 112, and in addition to this, the opening of the valve mounting portion 116 is wide and the interval between the valve 112 and the end 120 of the protective cover 115 is wide. The valve 112 attached to is in a state where it is easily rattled. If the bulb 112 is loose, the illumination will flicker.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-vehicle indoor lighting device capable of mounting a valve without backlash.

  The in-vehicle indoor lighting device of the present invention according to claim 1 made to solve the above-mentioned problem is an in-vehicle indoor lighting device including a functional unit, wherein the functional unit includes a valve mounting unit, a wire mounting unit, And a synthetic resin housing having a switch mounting portion, a bulb as a light source mounted on the bulb mounting portion, a power supply member for supplying power to the bulb from an electric wire mounted on the wire mounting portion, and the switch mounting In the vehicle interior lighting device, comprising: a switch mounted on a portion; and a protective cover that protects the connecting portion of the electric wire and the power supply member. The protective cover is a valve guide surface that can be guided by contact with the valve. The protective cover or the housing includes a valve urging portion that generates a urging force to oppose a force from the valve that is in contact with the valve guide surface. It is characterized in that.

  According to the present invention having such a feature, the valve is held not only by the holding function of the valve mounting portion but also by the protective cover. The valve is prevented from rattling by contacting the valve guide surface of the protective cover. The valve is returned to the predetermined position by the urging force of the valve urging portion even when an external force is applied, for example, when the valve swings with respect to the predetermined mounting position.

  A vehicle interior lighting device according to a second aspect of the present invention is the vehicle interior lighting device according to the first aspect, wherein the valve biasing portion is a lock portion that locks the protective cover and the housing. It is characterized by one functional part.

  According to the present invention having such a feature, the lock portion functions to lock the protective cover and the housing, and urges the valve in contact with the valve guide surface of the protective cover toward a predetermined position. It also has a function.

  According to a third aspect of the present invention, in the in-vehicle indoor lighting device according to the second aspect, the one functional portion is a flexible arm having flexibility as the lock portion of the protective cover. It is characterized by being.

  According to the present invention having such a feature, the valve that comes into contact with the valve guide surface of the protective cover is returned to a predetermined position by the urging force of the flexible arm constituting the lock portion of the protective cover.

  According to a fourth aspect of the present invention, in the in-vehicle indoor lighting device according to the second aspect, the one functional portion is a flexible arm having flexibility as the lock portion of the housing. It is characterized by being.

  According to the present invention having such a feature, the valve that comes into contact with the valve guide surface of the protective cover is returned to a predetermined position by the urging force of the flexible arm that constitutes the lock portion of the housing.

  According to the first aspect of the present invention, since the valve guide surface of the protective cover and the valve urging portion of the protective cover or the housing are provided, there is an effect that the valve can be mounted without backlash. . Thereby, there exists an effect that the flicker of illumination can be prevented.

  According to the second aspect of the present invention, by adding an urging function for the valve to the lock portion, there is an effect that the structure of the functional portion can be made simple and compact.

  According to the third aspect of the present invention, by providing the valve urging portion on the protective cover side, there is an effect that the structure on the housing side can be made simple and compact.

  According to the present invention described in claim 4, by providing the valve urging portion on the housing side, there is an effect that the structure on the protective cover side can be made simple and compact.

It is a perspective view (before valve | bulb mounting | wearing) of the function part which comprises the vehicle-mounted indoor lighting apparatus of this invention. It is a perspective view of a function part. It is a perspective view of a protective cover. It is a longitudinal cross-sectional view (main part sectional drawing) of a function part. It is structure explanatory drawing of a wire harness module provided with the conventional vehicle-mounted indoor lighting apparatus. It is a perspective view of the function part which comprises the conventional vehicle-mounted indoor lighting apparatus.

  A valve holding part having a valve guide surface that can be guided by contact with a valve is formed on a protective cover of a functional part constituting the in-vehicle interior lighting device. In addition, a valve urging portion for generating an urging force is formed on the protective cover or the housing of the functional portion so as to oppose the force from the valve contacting the valve guide surface.

  When the valve mounting portion and the switch mounting portion are arranged and formed on both sides of the electric wire mounting portion in the housing, it is preferable that valve holding portions having a valve guide surface are formed on both sides of the protective cover.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a perspective view (before the bulb is mounted) of a functional unit constituting the vehicle interior lighting device of the present invention. 2 is a perspective view of the functional part, FIG. 3 is a perspective view of the protective cover, and FIG. 4 is a longitudinal sectional view (main part sectional view) of the functional part.

  In FIG.1 and FIG.2, the reference number 1 has shown the function part which comprises the vehicle-mounted indoor illuminating device of this invention. The functional part 1 is provided on the outdoor side of the ceiling trim 111 (see FIG. 5) of the automobile (the interior side of the ceiling trim 111 is provided with a design part (not shown) constituting the vehicle interior lighting device of the present invention. Is). Such a functional unit 1 includes a valve 2 (wedge base valve), a switch 3 (push alternator SW) for turning on / off the valve 2, a synthetic resin housing 4, and a power supply mounted in the housing 4. It comprises a member 5 and a protective cover 7 made of synthetic resin that protects the connection portion (wire pressure contact portion) of the electric wire 6 and the power supply member 5. The functional unit 1 of the present embodiment can be used as a push alternator functional unit. First, each said structural member is demonstrated.

  The bulb 2 includes a bulb portion 8 in which a filament is accommodated and the lower side is inclined, and a flat base portion 9 formed integrally with the lower side of the bulb portion 8. Concave portions 10 are symmetrically arranged and formed in the base portion 9. A pair of substantially arc-shaped bent portions 21 described later of the power supply member 5 are engaged with the pair of recesses 10. By this engagement, a terminal (not shown) on the side of the base portion 9 and the power supply member 5 are electrically connected. Reference numeral 11 in the base portion 9 indicates a cylindrical portion. The columnar portion 11 has a columnar shape and is disposed at the center position of the base portion 9.

  The switch 3 has a configuration and a structure that can be turned on / off when the pin-shaped operation unit 13 is submerged in the switch body 12. The valve 2 is turned on / off by operating the operation unit 13.

  The housing 4 has a valve mounting portion 14, an electric wire mounting portion 15, and a switch mounting portion 16. Schematically describing these portions, the valve mounting portion 14 is formed as a portion for mounting the valve 2 in an oblique posture. The electric wire attachment portion 15 is formed as a portion where the electric wire 6 is attached. The switch mounting portion 16 is formed as a portion where the switch 3 is mounted. The functions of the valve mounting portion 14, the wire mounting portion 15, and the switch mounting portion 16 are the same as the functions of the conventional valve mounting portion 116, the wire mounting portion 117, and the switch mounting portion 118 shown in FIG. And

  The valve mounting part 14 is formed in a substantially hole shape. The front opening of the valve mounting portion 14 is widely formed for mounting the power supply member 5. An arcuate hole wall 17 is formed in the valve mounting portion 14 at a position away from the power supply member 5. A side portion of the bulb portion 8 of the bulb 2 is held by a hole wall 17. It is assumed that the holding range of the hole wall 17 with respect to the valve 2 is not different from the conventional one.

  The electric wire mounting portion 15 has a housing side lock portion 18 (lock portion) as shown in FIG. 4 in a portion where the electric wire 6 is drawn out (since there are two portions to be drawn out, the housing side lock portion 18 has a pair. Become). In this embodiment, each housing side lock portion 18 is formed to have a horizontal locking surface, and a slope and a vertical surface for smoothly guiding the mating lock portion to this locking surface. . That is, each housing side lock portion 18 is formed to have a pair of locking projections 19. The pair of locking projections 19 are formed on a pair of walls 20 that face each other at a portion where the electric wire 6 is pulled out. Specifically, it is arranged and formed at the upper position of each wall 20. The pair of walls 20 are formed in a shape having such rigidity that the gap does not open.

  The switch mounting portion 16 is formed in the same manner as the conventional switch mounting portion 118 shown in FIG. Therefore, the description here is omitted.

  In FIG. 1, the power supply member 5 includes a pair of bus bars, and each bus bar is formed in a separate system. On one end side of each bus bar, a pair of substantially arc-shaped bent portions 21 for providing a conductive connection with a terminal (not shown) on the base portion 9 side of the valve 2 is provided. Moreover, the other end side is provided with a wire pressure contact portion (not shown) for pressing the wire 6.

  The pair of substantially arc-shaped bent portions 21 are formed in a shape that can be expanded and deformed so as to sandwich the base portion 9. Each of the pair of substantially arc-shaped bent portions 21 has a free end on each distal end side, and is formed in an arc shape that protrudes in a direction in which the free end and the proximal end side approach each other.

  1 to 4, the protective cover 7 includes a cover main body 22, a pair of cover side lock portions 23 (lock portions), and a pair of valve holding portions 24. The cover main body 22 is formed mainly as a portion covering the wire pressure contact portion of the electric wire 6. Cover side lock portions 23 are coupled to both sides of the cover main body 22 in the electric wire arrangement direction (the width direction of the functional portion 1). In addition, valve holding portions 24 are coupled to both sides of the cover main body 22 that are perpendicular to the wire routing direction (width direction of the functional portion 1) (longitudinal direction of the functional portion 1).

  Each cover-side lock portion 23 is a portion that engages with the corresponding housing-side lock portion 18 and is formed so as to be inserted between the pair of walls 20. Each cover side lock portion 23 includes a base portion 25 extending downward from the cover main body 22, a pair of flexure arms 26 coupled to the lower side of the base portion 25, and a lock coupled to the base portion 25 and positioned outside the base portion 25. Part protection wall 27.

  Each flexible arm 26 is formed in a shape that is substantially J-shaped in a side view as shown in FIG. Each bending arm 26 has flexibility, and the tip thereof becomes a free end and faces upward. At the free end, a locked portion 28 that is hooked on the locking protrusion 19 of the housing side lock portion 18 is formed. The locked portion 28 has a substantially L-shaped recess when viewed from the side, and an inclined surface disposed below the recess, and the recess has a locking surface and a vertical surface of the locking protrusion 19. To be engaged. Further, the inclined surface of the locked portion 28 comes into contact with and slides on the inclined surface of the locking protrusion 19.

  Each bending arm 26 is formed so as to generate a restoring force to return to its original state when it is bent (see the arrow in FIG. 4 for the bending direction). In the present invention, this restoring force is used as an urging force for returning the valve 2 that has rattled or wobbled to a predetermined position. Each flexible arm 26 functions as a portion corresponding to the valve urging portion described in the claims, not just one functional portion of the lock portion.

  As a modification, the following may be adopted. That is, the flexure arm 26 may be provided on the housing side lock portion 18 and the arrangement may be changed such that the locking projection 19 is provided on the cover side lock portion 23 to provide the valve biasing portion on the housing 4 side. To do.

  Each valve holding portion 24 is formed in a shape that becomes a protruding portion so as to eliminate the interval (see FIG. 6) between the conventional valve 112 and the end portion 120 of the protective cover 115. Each valve holding portion 24 is formed in a shape in which the protruding tip is recessed in an arc shape. A valve guide surface 29 is formed in the recessed portion. The valve guide surface 29 is formed as a part where the valve 2 can be contacted and as a part where the valve 2 can be guided. The valve guide surface 29 is formed on an inclined surface so as to correspond to the valve 2 mounted in an oblique posture. The valve guide surface 29 is disposed and formed so as to face the arcuate hole wall 17 in the valve mounting portion 14 (the portion that holds the valve 2 is increased as compared with the conventional case). A slightly protruding rib 30 is formed on the valve guide surface 29 as shown in FIG. 4 (arrangement, number and setting of the ribs 30 are arbitrary).

  In addition, the valve holding part 24 may be formed only on the valve 2 side. In this embodiment, a pair is formed in order to eliminate the directionality when the protective cover 7 is engaged with the housing 4.

  Next, the assembly and operation of the functional unit 1 will be described based on the above configuration and structure.

  The method of assembling the switch 3 to the switch mounting portion 16 of the housing 4 is assumed to be the same as the conventional method. The power feeding member 5 is assembled so as to straddle the valve mounting portion 14 and the wire mounting portion 15 of the housing 4. It is assumed that the method of assembling the power supply member 5 is the same as the conventional method.

  After the electric wire 6 is attached to the electric wire attachment portion 15, in other words, after the electric wire 6 is pressed by the electric wire pressure contact portion of the power supply member 5, the protective cover 7 is covered with the protective cover 7 so as to protect this portion. 15 is engaged. At this time, the engaged portions 28 of the pair of flexure arms 26 in each cover side lock portion 23 are caught by the pair of engagement protrusions 19 of the corresponding housing side lock portion 18, thereby forming a locked state. Although the protective cover 7 is fixed to the housing 4, it can move slightly in the direction of the arrow in FIG. 4 due to the flexibility of the pair of bending arms 26.

  After assembling the protective cover 7, the valve 2 is mounted in an oblique posture on the valve mounting portion 14, and the pair of substantially arc-shaped bent portions 21 of the power supply member 5 are electrically connected to terminals (not shown) of the valve 2. 1 assembly is completed.

  As shown in FIG. 4, the bulb 2 is held by inserting the base portion 9 into an insertion groove 31 provided in the back of the bulb mounting portion 14, and the lower side of the bulb portion 8 has an arcuate hole wall 17. And held between the valve guide surfaces 29. The valve 2 is mounted without backlash. When the bulb 2 comes into contact with the bulb guide surface 29 of the protective cover 7, it is possible to prevent the backlash that has been a concern in the past (in the case of this embodiment, the rib 30 of the bulb guide surface 29 below the bulb portion 8). Are in contact with each other, and there is almost no gap between them, preventing backlash). Even when an external force is applied, for example, when the valve 2 swings with respect to a predetermined mounting position, the valve 2 is returned to the predetermined position by the urging force of the pair of bending arms 26 (valve urging portions).

  As described above with reference to FIGS. 1 to 4, according to the present invention, the valve guide surface 29 of the protective cover 7 and the pair of flexible arms 26 (valve urging portions) are provided. As a result, the valve 2 can be mounted without backlash. Thereby, according to this invention, there exists an effect that the flicker of illumination can be prevented.

  Further, according to the present invention, since the urging function for the valve 2 is added to the cover-side lock portion 23, the functional portion is provided rather than the urging function being added to another position of the protective cover 7 and the housing 4. There is an effect that the structure of 1 can be made simple and compact.

  In addition, since a pair of valve holding portions 24 having the valve guide surfaces 29 are provided on the protective cover 7, there is an effect that the protective cover 7 can be engaged with the housing 4 without worrying about directionality.

  It goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Functional part 2 ... Valve 3 ... Switch 4 ... Housing 5 ... Electric power supply member 6 ... Electric wire 7 ... Protective cover 8 ... Light bulb part 9 ... Base part 10 ... Recessed part 11 ... Cylindrical part 12 ... Switch body 13 ... Operation part 14 ... Valve mounting portion 15 ... Electric wire mounting portion 16 ... Switch mounting portion 17 ... Hole wall 18 ... Housing side lock portion (lock portion)
DESCRIPTION OF SYMBOLS 19 ... Locking protrusion 20 ... Wall 21 ... Substantially circular arc shape bending part 22 ... Cover main body 23 ... Cover side lock part (lock part)
24 ... Valve holding portion 25 ... Base portion 26 ... Deflection arm (valve biasing portion)
27: Locking part protective wall 28 ... Locked part 29 ... Valve guide surface 30 ... Rib 31 ... Insertion groove

Claims (4)

An in-vehicle indoor lighting device including a functional unit,
The functional unit includes a housing made of a synthetic resin having a valve mounting part, a wire mounting part, and a switch mounting part, a valve as a light source mounted on the valve mounting part, and an electric wire mounted on the wire mounting part. In the vehicle interior lighting device, comprising: a power supply member that supplies power to the bulb; a switch that is mounted on the switch mounting portion; and a protective cover that protects the connection portion of the wire and the power supply member.
The protective cover has a valve guide surface that can be guided by contact with the valve;
The vehicle interior lighting device, wherein the protective cover or the housing has a valve urging portion that generates an urging force to oppose a force from the valve that is in contact with the valve guide surface. The in-vehicle indoor lighting device according to claim 1,
The bulb urging unit is a functional part of a lock unit that locks the protective cover and the housing. The in-vehicle indoor lighting device according to claim 2,
The one-function part is a flexible arm having flexibility as the lock part of the protective cover. The in-vehicle indoor lighting device according to claim 2,
The one-function portion is a flexible arm having flexibility as the lock portion of the housing.

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